Electronics Forum | Fri Mar 19 10:06:22 EDT 2010 | karlo
Rework is typically done by heating the BGA to 170-180C to first scrape off the fillet. Then, heat to above reflow, and lift the BGA. Then, collapse the solder with heat and flux. Then, back down at 170-180C, scrape off the underfill from the boar
Electronics Forum | Tue May 26 05:28:57 EDT 2009 | grantp
Hi, So you looked at Fuji and it did not live up to the marketing? I own the latest model Fuji's and they more than live up to the marketing so I don't know what your talking about. Perfect placement, very fast, and with all 6 of our machines have n
Electronics Forum | Wed Jun 24 06:49:59 EDT 2009 | vetteboy86
I'm building a clamshell test fixture. I have all the pins and sockets to make a bed of nails. I purchased an enclosure. Everything else is pretty standard. I do not however have any information on pushpins. These would be inserted into the lid, then
Electronics Forum | Sat Jun 27 00:23:26 EDT 2009 | grantp
Hi, This is easy. If your just doing prototypes, then you could get by with a syringe of solder paste and a hear gun. You can put down a little solder paste on each page and then place the passives and heat gun the board. If you have other active p
Electronics Forum | Wed Jul 29 07:02:50 EDT 2009 | thanhnguyen
yes i did test it manually, and it working fine.At the plug in, that the only way to plug it. With my ohm meter,24 volt present when you turn it on. The wierd thing is it blowing during head going down,then will sucking up when it move up.Vacuum valv
Electronics Forum | Wed Aug 19 01:00:13 EDT 2009 | sergey2007
Hi! Thanks to everyone! Josh, I don't think it could be something wrong with the mechanics, as just one component was rotated. Anyway, we will check the mechanical parts of the oven. LarryD, thank you for the advice. But what is the physics of the
Electronics Forum | Tue Sep 01 05:28:49 EDT 2009 | aj
start skipping out some parts and try to transmit? could be a dodgy part data... Best thing to do is skip out everything except one part and see how you get on with the transmission and work from there. If it transmits start addin a few more until y
Electronics Forum | Thu Oct 08 09:08:47 EDT 2009 | arrowvale
Anybody still using or has knowledge of RV4 versertronics machines? I have a problem that to increase accurate placement and pick up, I need increased light. If I run with the smoke coloured safety cover down errors increase greatly. I'm arranging
Electronics Forum | Fri Oct 30 12:48:59 EDT 2009 | dannou
I've been the AOI programmer for around 5 years now. The equipment I use is the Orbotech VT-9300 & VT-9500 systems. The programming isn't too difficult, mostly Grey-scale shadow measurement through application algorithms. Three levels of lighting an
Electronics Forum | Wed Nov 11 13:14:10 EST 2009 | vinh
Hi, GC-PLACE VERSION 4.1.2 Please, help me. Can you teach me basic steps to get xy data for machine. I usually teaching each location then write down xy. But sometime the board is a lot of component and take me a day to finish. Thanks
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